SF10GG-A Equivalent & Substitute Parts

Part Overview

The SF10GG-A is a general-purpose rectifier diode manufactured by Diodes Incorporated, rated for 400 V DC reverse voltage and 1 A average rectified current in a through-hole DO-41 package. This component is classified as obsolete, making identification of equivalent and substitute parts necessary for ongoing design support, maintenance, and production continuity. Equivalent parts must maintain identical electrical performance characteristics and mechanical compatibility to ensure direct substitution without circuit redesign.

Substiute Parts

SF10GG-A

Diodes IncorporatedIn Stock: 787SF10GG-A Datasheet

Current PartRFQ

BA157GP-AP

Micro Commercial CoIn Stock: 1025BA157GP-AP Datasheet

Parametric EquivalentRFQ

FR104G

Taiwan Semiconductor CorporationIn Stock: 881FR104G Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SF10GG-A is determined by strict equivalence across the following electrical and mechanical parameters:

Electrical Equivalence Criteria:

• Voltage - DC Reverse (Vr) (Max): 400 V
• Current - Average Rectified (Io): 1 A
• Voltage - Forward (Vf) (Max) @ If: 1.3 V @ 1 A
• Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)

Mechanical Equivalence Criteria:

• Mounting Type: Through Hole
• Package / Case: DO-204AL, DO-41, Axial
• Operating Temperature - Junction: -65°C ~ 150°C (minimum requirement)

Compliance Criteria:

• RoHS3 Compliant
• ECCN: EAR99
• HTSUS: 8541.10.0080

All substitute parts listed below satisfy these criteria and are classified as parametric equivalents for the SF10GG-A.

Parameter Comparison

Engineering Selection Recommendations

BA157GP-AP (Micro Commercial Co): This part is an active product with full parametric equivalence to the SF10GG-A. It maintains identical voltage, current, and forward voltage specifications. The BA157GP-AP exhibits improved reverse leakage characteristics (5 µA versus 10 µA) and lower capacitance (15 pF versus 75 pF), which may provide performance benefits in high-frequency applications. ROHS3 compliance and EAR99 classification match the original part. This substitute is suitable for direct replacement in all applications where the SF10GG-A was specified.

FR104G (Taiwan Semiconductor): This part is an active product with full parametric equivalence to the SF10GG-A across all critical electrical parameters. The FR104G demonstrates superior reverse leakage performance (5 µA versus 10 µA) and the lowest capacitance rating (10 pF versus 75 pF) among the available substitutes. The operating temperature range extends to -55°C minimum (versus -65°C for the original), which is acceptable for most industrial and commercial applications. ROHS3 compliance and EAR99 classification are maintained. This substitute is suitable for direct replacement in all applications where the SF10GG-A was specified.

Both substitute parts are active products with established supply chains, providing superior availability compared to the obsolete SF10GG-A. Selection between BA157GP-AP and FR104G should be based on specific application requirements regarding reverse leakage and capacitance performance, as well as supplier preference and lead time considerations.

Frequently Asked Questions (FAQ)

Q: Can BA157GP-AP and FR104G be used interchangeably with SF10GG-A?

A: Both BA157GP-AP and FR104G meet all parametric equivalence criteria for the SF10GG-A, including voltage rating (400 V), current rating (1 A), forward voltage (1.3 V @ 1 A), and package type (DO-41 through-hole). Both are suitable for direct substitution without circuit modification.

Q: What is the difference between the reverse recovery time values listed for each part?

A: The SF10GG-A specifies a reverse recovery time (trr) of 40 ns, while both BA157GP-AP and FR104G specify 150 ns. All three parts meet the fast recovery classification (≤ 500ns, > 200mA). The longer recovery time in the substitute parts does not affect compliance with the speed classification and is acceptable for general-purpose rectification applications.

Q: Why does the SF10GG-A have higher capacitance (75 pF) compared to the substitute parts?

A: Capacitance variation within the same voltage and current rating is a normal characteristic of different diode designs and manufacturing processes. The lower capacitance of BA157GP-AP (15 pF) and FR104G (10 pF) may provide advantages in high-frequency switching applications by reducing switching losses and improving transient response.

Q: Are there any temperature range limitations when substituting with FR104G?

A: The FR104G operating temperature range is -55°C to 150°C, compared to -65°C to 150°C for the SF10GG-A. The FR104G minimum temperature is 10°C higher. This difference is acceptable for most industrial and commercial applications. Applications requiring operation below -55°C should use BA157GP-AP, which maintains the full -65°C to 150°C range.

Q: Do all substitute parts maintain RoHS3 compliance?

A: Yes. Both BA157GP-AP and FR104G are ROHS3 compliant, matching the compliance status of the SF10GG-A. Both parts also carry EAR99 ECCN classification and the same HTSUS code (8541.10.0080).

Q: What is the difference between DO-41 and DO-204AL package designations?

A: DO-41 and DO-204AL refer to the same physical package format for axial-lead diodes. DO-204AL is the formal JEDEC designation, while DO-41 is the legacy designation. All three parts (SF10GG-A, BA157GP-AP, and FR104G) are available in this identical package format and are mechanically interchangeable.

Q: Which substitute part should be selected for new designs?

A: Both BA157GP-AP and FR104G are active products suitable for new designs. BA157GP-AP maintains the full temperature range of the original part (-65°C to 150°C). FR104G offers the lowest capacitance and improved reverse leakage but with a minimum temperature of -55°C. Selection should be based on specific application temperature requirements and performance priorities regarding capacitance and leakage characteristics.